Calculations of the Decay Constant and Radius of the Pion

Chin. Phys. Lett.

1995, Vol. 12

Issue (3): 140-143 DOI:

Original Articles

Calculations of the Decay Constant and Radius of the Pion

WAN Shaolong¹;ZHOU Jiange²;CHEN Qinghu¹;WANG Kelin¹

¹Center for Fundamental Physics, University of Science and Technology of China, Hefei 230026 ²CCAST (World Laboratory), P.O. Box 8730, Beijing 100080; and Institute of High Energy Physics, Academia Sinica, Beijing 100039

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WAN Shaolong, ZHOU Jiange, CHEN Qinghu et al 1995 Chin. Phys. Lett. 12 140-143

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Abstract We calculated the decay constant and radius of the pion in the framework of the Bethe-Salpeter equation with the vector-vector-type flat-bottom potential. The calculated results, f_π =102MeV and < r_π²>^1/2 =0.632fm, are close to experimental values of f_π = 93 MeV and < r_π²>^1/2 = 0.663± 0.023fm.

Keywords: 14.40.-n 11.10.St 12.40.Qq

Published: 01 March 1995

PACS:	14.40.-n	(Mesons)
	11.10.St	(Bound and unstable states; Bethe-Salpeter equations)
	12.40.Qq

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1995/V12/I3/0140

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	ZHOU Jiange
	CHEN Qinghu
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